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They suffered through Covid-19, and still don’t want the vaccine

More than 100 million people in the U.S. have likely been infected with Covid, according to one recent estimate. Many of them have become proponents of natural immunity who are among the roughly 126 million Americans who remain unvaccinated, about 38% of the population.

By: Bloomberg |
September 28, 2021 1:54:55 pm
A demonstrator holds a sign during a protest against Covid-19 vaccination mandates in Lansing, Michigan, U.S., on Friday, Aug. 6, 2021. Image/Bloomberg)

When Eric Grunor contracted Covid-19 in January, he became so ill that he struggled to get off the couch. One night, he awoke at 3 a.m., winded, barely able to talk and so fatigued he could hardly lift his head.

“I woke my wife up and said, ‘You’ve got to take me to the ER,’” he said. “My wife thought she was going to be a widow.”

After three weeks of recovery at home, the 54-year-old Texas insurance broker’s experience is one few would want to endure twice. But he remains unvaccinated, putting him among a stubborn contingent of Americans who say they have natural immunity and don’t require shots — a belief that experts are divided on.

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“I’m in the category of person who would least need the vaccine, at this point,” said Grunor. “To me, natural antibodies are better than any man-made antibodies.”

Natural Immunity

Grunor said he’s concerned that vaccinated people can still get infected and believes there’s a lack of clarity about the shots’ long-term safety. Even if he hadn’t been ill, he said, he probably would have remained unvaccinated. His wife and son, who appear to have avoided Covid-19, aren’t vaccinated either.

More than 100 million people in the U.S. have likely been infected with Covid, according to one recent estimate. Many of them have become proponents of natural immunity who are among the roughly 126 million Americans who remain unvaccinated, about 38% of the population.

As public health officals urge universal immunization, polling shows more resistance to shots among people with prior infections. The majority report that having had Covid influenced their decision to remain unvaccinated.

The debate over natural immunity fuels hesitancy and foreshadows more challenges for vaccination campaigns as the highly contagious delta variant rages. Indeed, some research indicates that an earlier case of Covid protects as well or better against the strain than vaccination alone.

A recent analysis from Israel found that fully vaccinated people were at six times higher risk of Covid than those who were previously infected and unvaccinated. Those with earlier infections were also less likely to fall ill with symptoms and get hospitalized with Covid, according to the study, published before review by experts in the field.

Different Conclusions

But other findings suggest different conclusions: A large U.K. study, also published before peer review, found two-dose vaccines were at least as effective as natural immunity. Last month, a study from the Centers for Disease Control and Prevention found people who caught Covid and remained unvaccinated were more than twice as likely to be reinfected as those got immunized.

Experts also point to continuing questions about how much protection is given by previous illness, how long it lasts and how well it stacks up against vaccination. Several studies, including the one from Israel, show that at least one shot adds to the protection granted by an infection.

“If you’ve been naturally infected and you get vaccinated, you are better off,” said Paul Offit, director of the Vaccine Education Center at the Children’s Hospital of Philadelphia. “And there’s no downside. There is no good reason to not get the vaccine.”

The combination of natural immunity and vaccine-induced protection has long been seen as a route out of the pandemic. In the U.S., the concept became politicized early on, as opponents of masking, social distancing and other public health measures claimed that when enough people had been infected with the coronavirus, the pandemic would burn out.

Viral Tricks

Antibodies and other components of the immune system remember invaders, helping protect against further infection. But immunity is complicated and not without limitations: many infectious diseases, like smallpox, persisted for millennia despite humans’ natural immune response, and have only been controlled by vaccination.

The immune system can also be fooled by viral tricks, such as mutation. SARS-CoV-2’s interaction with the body still has many mysteries that remain uncracked.

“We don’t have any formula where we know what gives you reasonable protective immunity,” said Shane Crotty, a professor at La Jolla Institute for Immunology. “We can’t look at a single person and say, ‘Yes, you are protected.’”

After illness with Covid, the vast majority of people appear to have significant amounts of immunological memory as measured by antibodies and immune cells, Crotty said. But about 5% do not, and levels of protection vary dramatically between people.

Vaccines Plentiful

Then there’s the issue of documenting infection. Some people who believe they had Covid were never diagnosed. Even for those who were infected, “what PCR test do you trust?” Crotty said. “What antibody test do you trust, if you’re going to formalize this?”

Meanwhile, vaccines are plentiful in the U.S. and carry only rare serious safety issues, said Brian Castrucci, president and chief executive officer of the de Beaumont Foundation, which has a public health focus. The risks of Covid infection are far greater, he said.

“The path to getting through the pandemic is vaccination,” he said. Most people who claim they’re protected by natural immunity are “not virologists, they’re not public health professionals.”

Todd Zywicki, a George Mason University law professor, sued school officials in early August over its vaccination policy and other Covid measures, saying that he shouldn’t have to comply because he’d already had Covid.

The New Civil Liberties Alliance, which represented him, later said Zywicki had been given a medical exemption. But the university doesn’t consider natural immunity a substitute for vaccination, the group said in statement, calling vaccination “medically unnecessary” for those people.

“At times GMU officials have appeared to deny that such a thing as naturally acquired immunity exists,” the statement said.

‘I’m Safe’

Natural immunity comes up often at the North Carolina hospital where physician Dona Hasou works. Patients as well as colleagues say that they can’t get Covid again, or that if they do, they won’t get as sick. Many hospital staffers previously contracted the illness, and less than half of them have been immunized, Hasou said.

“‘I’ve had it already, so I’m safe’ is part of the reassurance for people,” she said. Often, though, the same people cite fear about the vaccine’s side effects.

Many proponents of natural immunity refer to an unreviewed study of employees at the Cleveland Clinic that concluded previously infected people are unlikely to benefit from Covid vaccination. The medical center later released statements walking the findings back, pointing out it was conducted prior to the delta variant’s ascendance.

Still, some medical providers are also asserting that natural immunity is superior.

“The doctor said there’s no reason for me to get a vaccination before my antibody numbers become almost nonexistent,” said Reed Storey, a 35-year-old farmer in Arkansas, speaking over the whirring of a cotton picker in the background. He declined to name his physician. Storey said his girlfriend, a nurse who became sick around the same time he did and also has antibodies, also hasn’t gotten shots.

For public-health outreach workers, it adds up to a lot of frustration. In a focus group of vaccine-hesitant people, Castrucci recounted, a woman said her father died from Covid, likely contracted from an unvaccinated health-care worker.

“And she didn’t want to get the vaccine,” he said. “I can’t make sense of that. I think that is the hardest part here.”

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